<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
<title>DATABASE: Complex formation & Hydrolysis</title>
<style type="text/css"> <!-- @import url(1_.css);   --> </style>
<link disabled rel="stylesheet" type="text/css" href="1_.css">
</head>

<body bgcolor="#ffffff" text="#000000" link="#008000" vlink="#008000" alink="#008000">
<table cellspacing="0" cellpadding="0" border="0" width="100%">
  <tr>
    <td align="center" width="50">
    <a href="DB_0_Main.htm"><img src="images/database0.gif" border="0" width="32" height="32" alt="Database"></a>&nbsp;</td>
    <td align="left"><font size="-1"><a href="DB_0_Main.htm">DATABASE</a>&nbsp;/ <a href="DB_Databases.htm">Databases</a>&nbsp;/ <a href="DB_Create_your_database.htm">Create&nbsp;databases</a>&nbsp;/ <a href="DB_logK_files.htm"><nobr>logK-files</nobr></a></font></td>
  </tr>
</table>

<h3>Complex formation and hydrolysis:</h3>

<p>Example of <b>complex formation</b> reaction:</p>
<table cellspacing="0" cellpadding="0" border="0"><tr><td><tt>&nbsp;&nbsp;</tt>
</td><td>
<nobr>Fe<sup>3+</sup></nobr> <nobr>+&nbsp;edta<sup>4&#8722;</sup></nobr>
		<img src="images/rlh.gif" alt="=" border="0" width="14" height="10">  
    <nobr>Fe(edta)<sup>&#8722;</sup></nobr>
</td></tr></table>

<p>Line in the logK-file:</p>
<p class="indent">
  <nobr><tt>FeEDTA-;25.1;;;Fe 3+;1;;;EDTA 4-;1;;;;;;;0;Smith&amp;Martell</tt>
  </nobr>
  </p>

<p><b>Hydrolysis</b> reactions can not be entered as complexation reactions with
<nobr>OH<sup>&#8722;</sup>:</nobr> they must be re-written, if needed, in
terms of water and <nobr>H<sup>+</sup>.</nobr> For example:</p>

<p class="indent">
  <nobr>Ni<sup>2+</sup></nobr> <nobr>+&nbsp;3&nbsp;H<sub>2</sub>O</nobr>
	<img src="images/rlh.gif" alt="=" border="0" width="14" height="10">
	<nobr>Ni(OH)<sub>3</sub><sup>&#8722;</sup></nobr>
  <nobr>+&nbsp;3&nbsp;H<sup>+</sup></nobr>
  </p>

<p>Line in logK-file:</p>

<p class="indent">
  <nobr><tt>Ni(OH)3-;-31;;;Ni 2+;1;H+;-3;H2O;3;;;;;;;-3</tt></nobr>
  </p>

<p>See notes on <a href="DB_H2O.htm">water.</a></p>

</body>
</html>